<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>sessionID</title>
</head>
<body>
   <h3>sessionID页面</h3>
   <h2>SESSIONID : <%=session.getId()%></h2>
   <h2>SESSIONID LENGTH : <%=session.getId().length()%></h2>
</body>
</html>
